Table 1.

Sample description

	Yes
Enrolled	1506
Survived to age 10 years	1198
Recruited for assessment at age 10 years	966
Returned for an assessment at age 10 years	889
Proteins measured in blood collected on 2 separate days	857
DAS-II verbal IQ ≥ 70 and non-verbal IQ ≥ 70	666
Word Reading and Numberical Operations Z-scores available	660
Word Reading Z-score ≤ −1 + Numerical Operations Z-score > −1	48
Numerical Operations Z-score ≤ −1 + Word Reading Z-score > −1	113
Word Reading Z-score ≤ −1 + Numerical Operations ≤ −1	69
Word Reading Z-score > −1 + Numerical Operations > −1	430